Drying-chamber.



P. BARDUCCI. DRYINGCHAMBER.

[APPLICATION FILED APR. 12. IBIS.

Patented Dec. 4,1917.

3 SHEETS-SHEET lv Y/w// W M 1 V0 Ill Invenlar P. BARDUCCI. DRYING CHAMBER.

APPLICATiON FILED APR-l2.19\6.

Patented Dec. 4, 1917.

3 SHEETSS HEET 3- UNITED STATES PATENT oEEIoE.

PILADE BARDUCCI, OF NAPLES, ITALY.

DBYING CHAMIBER.

To all whom it may concern:

Be it known that I, PILADE BARDUCGI, a subject of the King of Italy, residing at Naples, Italy, have invented certain new and useful Improvements in Drying-Chambers, of which the following is a specification.

This invention relates to a ventilating system in which it is required to produce air streams of continually varying direction and intensity.

Accordin to this invention the above result is attained by using one or more fans revolving around a horizontal axis perpendicular to the axis of rotation of the fan or fans, these fans being arranged preferably in the intermediate portion of the chamber in which said fansare employed.

- The accompanying drawings show by Way of example some constructions, according to this invention, of a ventilating system for alimentary pastes:

Figure 1 is a longitudinal section of a drying chamber embodying the present invention,

Figs. 2,3, 4, 5 and 6 show diagrammatlcally the air streams produced in the chamber during the operation of the fan, some parts of the chambers being omitted from said figures for the sake of clearness,

Fig. 7 is a side view of an apparatus comprising this invention,

Fig. 8 is a longitudinal section of a chamber provided with a modified form of the apparatus,

Fig. 9 is a transverse section of the same,

Fig. 10 shows in detail the construction of the apparatus shown in Figs. 8 and 9.

As shown in Figs. 1 to 6, the chamber 1 is provided with supports 2 adapted to carry re s 3'which in turn support the material},

to be dried. Inthe middle portion of sai chamber between supports 2, isv mounted a.

rotary transverse shaft 4 carrying. one or more fans 5 whereof the axes are perpendicular to shaft 4.

The air is removed from the chamber by means of-exhausters 8 arranged near the floor at the opposite ends of the chamber, and fresh air which may be heated if desired, is supplied to the chamber 1 through openin 6 provided in the walls of a duct 7 aral el to and arranged above the shaft 4.

ipes 9 in which a heated medium is caused to circulate are used to-heat the air.

in chamber 1.

Specification of Letters Patent.

Patented Dec. 4, 1917.

Application filed April 12, 1916. Serial No. 90,649.

said shaft. In the sleeves 11, 11 are pivoted the shafts 38,38 of fans 5, 5' these shafts' being provided with pulleys 39, 39 connected by a belt 12. p

The apparatus is operated by means of a pulley 16 and belt driven by a transmission shaft not shown in this drawing. Said pulley is loosely mounted on shaft 4 and is provided with a toothed rim 15 meshing with a pinion 14 and thereby driving a pulley 14 which in turn rotates a pulley 38 by means of'a belt 12, the pulley 38 being securely fixed to the shaft 38' of fan 5.

The shaft 38 of the other fan is provided with'a worm gear 17 engaging a helicoidal wheel 18 securely fixed to shaft '19, said shaft being pivoted in a bracket 40 secured to the shaft 4. Shaft 4 is provided witha pinion 20 engaging a stationary toothed rim 21 which is secured to the wall of the chamber by means of bolts 41.

When rotated, pulley 16 renders operative the rim 15, pin10n14, ulley 14, belt 12', pulleys 38" and 39, belt 12, and pulley 39, thus causing shafts 38 and 38 to rotate, while worm 17 rotating the wheel 18 causes pinion 20 toroll on stationary rim 21; the shaft 4 and fans are thus caused to rotate as a Whole in bearings 10.

In the apparatus shown in Figs. 8, 9 and 10, the rotary member carrying the fans 5 and 5 is pivoted on bearings 10 arranged at the ends of a fork support 22 secured to and a counterweight 26 to balance the weight of the motor. 'Two pivots 27 are provided in the bearings 10 at the sides of said casing. Frames 28 and 28 carrying the fans 5 and 5' are secured each on one of said pivots.

Pulleys 29, 29' secured to the shaft of the motor 25 are connected by belts 42, 42 with pulleys 30, 30 fixed to the shafts of fans 5, 51, the rotation of the motor shaft being this transmitted to the fans. The axis 38 of fan 5 is provided with another pulley 31 driving, by means of a belt 43, a pulley 32 oo i pivoted in frame 28. Connected to said frame is a worm gear 33 driving a pinion I 34 secured to shaft 35. The shaft 35 1s pivoted in the rotating frame 28 and drives a pinion 36 which engages a stationary rim 37 secured in the bearing I Owing to..the arrangement described, the

' motor-25 when driving the fans causes the side frames 28 and 28' being dispensed with;

in this case the fork support 22 must obviously be of such a width as to-allow the fan blades to pass between its arms.

The fan or fans being caused to rotate around a horizontal axis as described, the direction of the air stream or'streams produced by said rotation is continually varied as shown in Figs. 2, 3, 4, 5 and 6, in which the air streams are shown to act. on the material to be dried in different directions during the operation of the apparatus.

Furthermore the intensit of said air stream is continually varied uring the revolution of the fans as shown in Figs. 2 and5. In the position shownjin Fig. 3, the full air stream is directed toward a single section of the chamber and is therefore of a greater intensity when the fans are in the position shown in Fig. 4 the air stream acts with full intensity on the material arranged near the fans; finally Figs. 5 and 6 show the fans operating as described in connection with Figs. 3 and 2 respectively, the direction of the air current belng reversed.

The described apparatus allows of ventilatin in succession the two sections of a cham or without stopping the fans, the direction of the air current bein reversed without reversing the .fans. Finally, all parts of the chamber are reached by the air current and the intensity of the aircurrent varies in accordance with the direction or heading of the fans. In drying chambers particularly in those for alimentary pastes it is often essential to have air currents'continually varying in direction and intensity. This, however, cannot be attained by known apparatus, which comprise a fan rotating about a stationary axis.

What I claim as new and desire to secure by Letters Patent is 1. A drying chamber for materials which must be suspended, comprising in combination means for hanging the material to be dried and means for generatin -an air current, said generating means eing caused to rotate around a horizontal axis so that the air current chan es continually its radial direction from sai horizontal axis.

2. A drying chamber for materials which must be suspended, comprising in combination means for hanging the material to be dried and means, arranged in different points of the chamber, for generating air currents, said generating" means being caused' to rotate around a horizontal axis so that each air current changes continually its radial. direction from said horizontal axis.

3. A drying chamber for materials which must be suspended, comprising-in combination means for hanging the material to be dried and means in the central portion of the chamber for generating an air current,

'. said generating means being caused to rotate around a horizontal axis so that the air current changes continually its radial direction from the said horizontal axis.

4. A drying chamber for'materia'ls which must be suspended, comprising in combination means for hanging the material to be dried and means in the central portion of the chamber for generating air currents, said generating means being caused to rotate around a horizontal axis so that each air current changes continually its radial direction from sald horizontal axis.

5. A drying chamber for materials which must be suspended,comprising in combination supports for the material to be dried arranged in parallel rows, and means for generating an air current, said generating means being caused to rotate around a horizontal axis perpendicular to the supports for the material so that the air current changes continually its radial direction from;

said horizontal axis.

6. A drying chamber for materials which must be' suspended, comprising in combination supports for the material to be dried arranged in parallel rows and means for generating alr currents, said generating means being caused to rotate around a horizontal axis perpendicular to the supports for the material so that each air current chan es continually said horizontal axis.

7. A drying chamber for materials which its radial direction from must be suspended, comprising in combinatral portionof the chamber, carryin said support and fan and means for bodi y rotating'the support and fan-around the axis must be suspended, comprising in combination means-for han 'ng the material to be dried, a plurality 0 fans, supports for the same, a member with a horizontal axis carryin the supports and fans and means for odily rotating said supports-and fans around the axis of said member so that each air current generated by a fan changes continually its radial direction from the said horizontal axis.

.10. A drying chamber for materials which must be suspended, comprising in combination means for han 'ng the material to be dried, a plurality 0 fans, supports for the same, a member with a horizontal axis,

mounted in the central portion of the chamher, carrying said supports and fans and means for bodily rotating said su ports and fans around the axis of said mem er so that each air current generated by a fan changes driven y the transmission and a stationary toothed rim meshing with said ,inion thereby causin said support and an to bodily rotate a but a horizontal axis.

12. A drying chamber for materials which must be suspended, comprising in combination means for hangin the material to be dried, a plurality of ans, supports therefor, .a member with a horizontal axis carrying'said supports'and fans, a transmission for driving said fans, a pinion mounted on said member and driven by said transmission and a toothed rim meshing with said pinion thereby causing said supports and fans to bodily rotate about the axis of said member.

13. A drying chamber for materials which must be suspended, comprising in combination means for hanging the material to be dried, a fan, a support therefor,, a

member with a horizontal axis carrying said support and fan, -a standard carrying said member, a motor mounted on said'member, a transmission driven by said :motor and driving said fan, a pinion mounted on said member and driven by said transmission and a stationary toothed rim meshing with said pinion thereby causing said support and fan to bodily rotate about the axis of said member.

14. A drying chamber for materials which must be suspended, comprising in combination means for hanging the material .to be dried, a plurality of fans, supports therefor, a member with a horizontal axis carrying the supports-and fans, a standard carrying said member, a motor mounted on said memher, a transmission driven by said motor and driving the fans, a pinion mounted on" said member and driven by the transmis-' sion and a stationary toothed rim meshing with said pinions thereb causing said support and fans to bodily rotate about the axis of said member.

15. .A drying-chamber formaterials which must be suspended, comprising in combination means for hanging the material to be dried, a fan, a sup ort therefor,,,a' frame with a horizontal axis carrying said support and fan, a motor mountedon said frame and adapted to drive said fan, a shaft mounted 4 on said frame, a pinion secured to said shaft, and driven bythe'motor and in turn drivin the shaft, another pinion secured to sai shaft and driven by same, and astationary toothed rim meshin with said other pinion thereby causing sai support and fan to rotate about the axis of said frame.

In testimony whereof I aflix my' signa ture in presence of two witnesses.

" PILADE BARDUCCI.

Witnesses:

Nrcono Goocrm, Enw. H. Carr. 

